+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21176 (1994 CN13) Classification: Main-belt Asteroid          SPK-ID: 2021176 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1877753857228801 3.0787e-08   a 2.453663698202448 1.1477e-08 au q 1.992926050838255 7.6557e-08 au i 3.636255366540978 3.881e-06 deg node 64.9716730957489 5.7075e-05 deg peri 260.2197472826201 5.897e-05 deg M 196.6784110561138 1.9564e-05 deg tp 2459837.386552342201 (2022-Sep-14.88655234) 7.9721e-05 TDB period 1403.850895192844 3.84 9.85e-06 2.697e-08 d yr n .2564374900730092 1.7993e-09 deg/d Q 2.914401345566641 1.3632e-08 au   Orbit Determination Parameters    # obs. used (total)      1552      data-arc span      14797 days (40.51 yr)      first obs. used      1980-09-09      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50828      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:40:58   Additional Information  Earth MOID = .982983 au   Jupiter MOID = 2.42152 au   T_jup = 3.467  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.54   n/a E2021B10   diameter diameter 7.653 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.050   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   21176 (1994 CN13)          Discovered 1994-Feb-08 by Elst, E. W. at La Silla Reference: 20010208/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1994 CN13 = 1980 RC5 = 1998 FE36  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-20 09:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin